:root {
  --primary: #1E40AF;
  --secondary: #0F766E;
  --accent: #C084FC;
  --bg-dark: #0B1120;
  --bg-light: rgba(255, 255, 255, 0.05);
  --text-main: #F1F5F9;
  --text-muted: #94A3B8;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.btn-glow {
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
}

.btn-glow::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
  transition: left 0.5s ease;
}

.btn-glow:hover::before {
  left: 100%;
}

.btn-glow:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 25px rgba(192, 132, 252, 0.45);
}

.btn-glass {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(8px);
  transition: all 0.3s ease;
}

.btn-glass:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: var(--accent);
  transform: scale(1.03);
}

.card-glass {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 1rem;
  backdrop-filter: blur(10px);
  transition: all 0.35s ease;
}

.card-glass:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(30, 64, 175, 0.25);
  border-color: rgba(192, 132, 252, 0.4);
}

.card-solid {
  background: linear-gradient(135deg, rgba(15, 118, 110, 0.15), rgba(30, 64, 175, 0.12));
  border: 1px solid rgba(15, 118, 110, 0.35);
  border-radius: 0.75rem;
  transition: all 0.35s ease;
}

.card-solid:hover {
  transform: scale(1.02);
  border-color: var(--accent);
  box-shadow: 0 0 20px rgba(192, 132, 252, 0.25);
}

.title-line {
  position: relative;
  display: inline-block;
  padding-bottom: 0.5rem;
}

.title-line::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 3rem;
  height: 3px;
  background: linear-gradient(90deg, var(--secondary), var(--accent));
  border-radius: 2px;
}

.title-bar {
  position: relative;
  padding-left: 1rem;
}

.title-bar::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.35rem;
  bottom: 0.35rem;
  width: 5px;
  background: linear-gradient(180deg, var(--primary), var(--accent));
  border-radius: 3px;
}

.starfield {
  background-image:
    radial-gradient(1.5px 1.5px at 20px 30px, rgba(255, 255, 255, 0.35), transparent),
    radial-gradient(1.5px 1.5px at 50px 120px, rgba(255, 255, 255, 0.25), transparent),
    radial-gradient(1.5px 1.5px at 90px 80px, rgba(255, 255, 255, 0.3), transparent),
    radial-gradient(1.5px 1.5px at 130px 40px, rgba(255, 255, 255, 0.2), transparent),
    radial-gradient(1.5px 1.5px at 170px 150px, rgba(255, 255, 255, 0.25), transparent);
  background-size: 200px 200px;
}

.nav-open {
  display: flex !important;
}